Update README with lap analysis and last lap time features

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: adn8naiagent

README.md

@@ -15,10 +15,11 @@ A web app for watching Formula 1 sessions with real timing data, car positions o
 
 - **Live timing** (Beta) - connect to live F1 sessions during race weekends with real-time data from the F1 SignalR stream, including a broadcast delay slider and automatic detection of post-session replays
 - **Track map** with real-time car positions from GPS telemetry, updating every 0.5 seconds with smooth interpolation, marshal sector flags, and toggleable corner numbers
-- **Driver leaderboard** showing position, gap to leader, interval, tyre compound and age, tyre history, pit stop count and live pit timer, grid position changes, fastest lap indicator, investigation/penalty status, and sub-1-second interval highlighting
+- **Driver leaderboard** showing position, gap to leader, interval, last lap time, tyre compound and age, tyre history, pit stop count and live pit timer, grid position changes, fastest lap indicator, investigation/penalty status, and sub-1-second interval highlighting
 - **Race control messages** - steward decisions, investigations, penalties, track limits, and flag changes displayed in a draggable overlay on the track map with optional sound notifications
 - **Pit position prediction** estimates where a driver would rejoin if they pitted now, with predicted gap ahead and behind, using precomputed pit loss times per circuit with Safety Car and Virtual Safety Car adjustments
 - **Telemetry** for unlimited drivers showing speed, throttle, brake, gear, and DRS (2025 and earlier) plotted against track distance, with a moveable side panel for 3+ driver comparisons
+- **Lap Analysis** (Beta) compare lap times for up to two drivers with a line chart and lap-by-lap history, with pit stop and safety car periods highlighted. Race replay only
 - **Picture-in-Picture** mode for a compact floating window with track map, race control, leaderboard, and telemetry
 - **Broadcast sync** - match the replay to a recording of a session, either by uploading a screenshot of the timing tower (using AI vision) or by manually entering gap times
 - **Weather data** including air and track temperature, humidity, wind, and rainfall status